2021201101 has 2 divisors, whose sum is σ = 2021201102. Its totient is φ = 2021201100.

The previous prime is 2021201099. The next prime is 2021201123. The reversal of 2021201101 is 1011021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230185476 + 791015625 = 35074^2 + 28125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021201101 - 2¹ = 2021201099 is a prime.

It is a super-2 number, since 2×2021201101² = 8170507781367224402, which contains 22 as substring.

Together with 2021201099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021202101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010600550 + 1010600551.

It is an arithmetic number, because the mean of its divisors is an integer number (1010600551).

Almost surely, 2^2021201101 is an apocalyptic number.

It is an amenable number.

2021201101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021201101 is an equidigital number, since it uses as much as digits as its factorization.

2021201101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2021201101 is about 44957.7701960406. The cubic root of 2021201101 is about 1264.3573630787.

Adding to 2021201101 its reverse (1011021202), we get a palindrome (3032222303).

The spelling of 2021201101 in words is "two billion, twenty-one million, two hundred one thousand, one hundred one".